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<h1>npq</h1><p><span class="helptopic">Normalized central image moments</span></p><p>
<strong>m</strong> = <span style="color:red">npq</span>(<strong>im</strong>, <strong>p</strong>, <strong>q</strong>) is the PQ'th normalized central moment of the image <strong>im</strong>.
That is UPQ(<strong>im</strong>,<strong>p</strong>,<strong>q</strong>)/MPQ(<strong>im</strong>,0,0).

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<h2>Notes</h2>
<ul>
  <li>The normalized central moments are invariant to translation and scale.</li>
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<h2>See also</h2>
<p>
<a href="matlab:doc npq_poly">npq_poly</a>, <a href="matlab:doc mpq">mpq</a>, <a href="matlab:doc upq">upq</a></p>
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